| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 101 | Mountaineer State Operations, LLC | Sandyville, WV 25275 | Oil & Gas Operator | Dec 2024 |
| 102 | Mourning James & Carol | Middleport, OH 45760-1214 | Gas Operator | Dec 2024 |
| 103 | MS Producing LLC | Creston, OH 44217 | Oil & Gas Operator | Dec 2024 |
| 104 | Mullins Well Service | MT Gilead, OH 43338 | Oil & Gas Operator | Dec 2018 |
| 105 | Murphy Oil Company Inc | Lancaster, OH 43130 | Oil & Gas Operator | Dec 2024 |
| 106 | Murtha Contracting Inc. | Conneaut, OH 44030 | Oil & Gas Operator | Dec 2009 |
| 107 | Mutual Oil & Gas Co | Akron, OH 44311 | Oil & Gas Operator | Dec 2000 |
| 108 | Myers Drilling Company | Barboursville, WV 25504 | Oil & Gas Operator | Dec 2024 |